Welcome to Journal of Automotive Safety and Energy,

Journal of Automotive Safety and Energy ›› 2022, Vol. 13 ›› Issue (2): 350-357.DOI: 10.3969/j.issn.1674-8484.2022.02.016

• Automotive Energy Efficiency and Environment Protection • Previous Articles     Next Articles

Coordinated control of FCV braking energy recovery considering dynamic load shedding characteristics of PEMFC

LU Dagang1(), YI Fengyan1, HU Donghai2,*(), CHENG Shan2   

  1. 1. School of Automotive Engineering, Shandong Jiaotong University, Jinan 250357, China
    2. School of Automotive and Traffic Engineering, Jiangsu University, Zhenjiang 212013, China
    3. State Key Laboratory of Automotive Safety and Energy(Tsinghua University), Beijing 100084, China
  • Received:2021-09-18 Revised:2021-12-13 Online:2022-06-30 Published:2022-07-01
  • Contact: HU Donghai E-mail:ludagang2213@163.com;1000004735@ujs.edu.cn

Abstract:

A control strategy of braking energy recovery was investigated for fuel cell vehicle (FCV) with proton exchange membrane fuel cells (PEMFC) based on the dynamic load shedding characteristics of PEMFC to make the FCV recover the braking energy to a greater extent. The dynamic characteristic model of FCV was established, and a coordination-based braking energy recovery control strategy was proposed considering the dynamic load shedding characteristics of PEMFC. The results show that compared with the rule-based control strategy, the SOC of the power battery can be improved by 1.3% under city conditions and 2.0% under high speed conditions with using coordination control strategy. The corresponding maximum impact is reduced by 3.2% and 2.1%, respectively. Therefore, fuel cell vehicles recycle more braking energy while improving braking comfort to a certain extent.

Key words: fuel cell vehicles (FCV), proton exchange membrane fuel cell (PEMFC), braking energy recovery, coordinated control

CLC Number: